Gamma globulin and Globulin

Gamma globulin noun - A plasma protein containing the immunoglobulins that are responsible for immune responses.

Globulin and gamma globulin are semantically related. In some cases you can use "Globulin" instead a noun phrase "Gamma globulin".

Globulin noun - A family of proteins found in blood and milk and muscle and in plant seed.

Gamma globulin and globulin are semantically related. Sometimes you can replace phrase "Gamma globulin" with "Globulin", this terms are similar.